> Where can I find information about SGG Bioclean self-cleaning glass, on how it works and technical data? I try on www.saint-gobain-glass.com but there are no data. Thanks in advance.

On the UK version of saint-gobain-glass.com, you will find a module which explains how it works:http://www.saint-gobain-glass.com/uk/a2.htmand the associated product file can be shown at:http://www.saint-gobain-glass.com/uk/b01.asp?product_id=1207